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NETWORK DESIGN (CHAPTER 1) - Coggle Diagram

- - - - Hierarchical design model has three basic layers :
        
        Core layer
        
        Distribution layer
        
        Access layer
  - - - Three areas of focus in modular network design :
        
        Enterprise campus
        
        2.Server farm
        
        Enterprise edge
- - - - Characterize existing network
      - STEP 3
        
        Design the network topology and solution
- - - - Plan phase
        
        Design phase
        
        4.Implement phase
        
        Operate phase
        
        Optimize phase
  - - - adapts the network infrastructure to the needs of the organisation.
      - The PPDIOO methodology uses the top-down approach.
    - - A common approach
      - network designer selects network devices and technologies based on previous experience rather than prior understanding of the organisation.